What was found
(CAN) PRIOR TO DEPARTURE, DURING FINAL VISUAL INSPECTION CHECK, FUEL WAS GUSHING OUT FROM THE APU COMPARTMENT. WHEN THE APU WAS SHUTDOWN AND RENDERED INOPERATIVE, THE FUEL LEAK STOPPED. A VISUAL INSPECTION OF THE APU CONFIRMED FUEL LEAK COMING OUT OF THE FUEL MANIFOLD WHICH HAS A LARGE CRACK. THE FUEL MANIFOLD INSTALLATION SHOW OBVIOUS BENDING OF FUEL TUBES AT 2 LOCATIONS. FUEL MANIFOLDS WILL BE REMOVED AND SENT TO MFG FOR INVESTIGATION. THE APU WAS TESTED, BUT NOT DISASSEMBLED, 65 HOURS PRIOR THIS EVENT.